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Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter
Windows 98 or Me Instructions
ADSL Gateway
Appendix B: Finding the MAC Address and IP Address for
Your Ethernet Adapter
This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC
filtering feature of the Gateway. You can also find the IP address of your computer’s Ethernet adapter. This IP
address is used for the Gateway’s filtering, forwarding, and/or DMZ features. Follow the steps in this appendix to
find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.
Windows 98 or Me Instructions
1.
Click
Start
and
Run
. In the
Open
field, enter
winipcfg
. Then press the
Enter
key or the
OK
button.
2.
When the
IP Configuration
screen appears, select the Ethernet adapter you have connected to the Gateway
via a CAT 5 Ethernet network cable. See Figure B-1.
3.
Write down the Adapter Address as shown on your computer screen (see Figure B-2). This is the MAC address
for your Ethernet adapter and is shown in hexadecimal as a series of numbers and letters.
The MAC address/Adapter Address is what you will use for MAC filtering. The example in Figure D-2 shows
the Ethernet adapters’s MAC address as 00-00-00-00-00-00. Your computer will show something different.
The example in Figure B-2 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
Figure B-2: MAC Address/Adapter
Address
Figure B-1: IP Configuration Screen
Note:
The MAC address is also called the Adapter Address.
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56
Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter
Windows 2000 or XP Instructions
ADSL Gateway
Windows 2000 or XP Instructions
1.
Click
Start
and
Run
. In the
Open
field, enter
cmd
. Press the
Enter
key or click the
OK
button.
2.
At the command prompt, enter
ipconfig /all
. Then press the
Enter
key.
3.
Write down the Physical Address as shown on your computer screen (Figure B-3); it is the MAC address for
your Ethernet adapter. This appears as a series of numbers and letters.
The MAC address/Physical Address is what you will use for MAC filtering. The example in Figure B-3 shows
the Ethernet adapters’s MAC address as 00-00-00-00-00-00. Your computer will show something different.
The example in Figure B-3 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
Figure B-3: MAC Address/Physical Address
Note:
The MAC address is also called the Physical Address.
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57
Appendix C: Upgrading Firmware
ADSL Gateway
Appendix C: Upgrading Firmware
To upgrade the Gateway’s firmware:
1.
Download the Gateway’s firmware upgrade file from
www.linksys.com/international
.
2.
Extract the file on your computer.
3.
Open the Gateway’s Web-based Utility and click the
Administration
tab.
4.
Click the
Firmware Upgrade
tab.
5.
Click the
Browse
button to find the extracted file, and then double-click it.
6.
Click the
Upgrade
button, and follow the on-screen instructions.
Figure C-1: Firmware Upgrade
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58
Appendix D: Glossary
ADSL Gateway
Appendix D: Glossary
This glossary contains some basic networking terms you may come across when using this product. For more
advanced terms, see the complete Linksys glossary at http://www.linksys.com/glossary.
Access Point
- A device that allows wireless-equipped computers and other devices to communicate with a
wired network. Also used to expand the range of a wireless network.
Ad-hoc
- A group of wireless devices communicating directly with each other (peer-to-peer) without the use of
an access point.
AES
(
A
dvanced
E
ncryption
S
tandard) - A security method that uses symmetric 128-bit block data encryption.
Bandwidth
- The transmission capacity of a given device or network.
Bit
- A binary digit.
Boot
- To start a device and cause it to start executing instructions.
Broadband
- An always-on, fast Internet connection.
Browser
- An application program that provides a way to look at and interact with all the information on the
World Wide Web.
Byte
- A unit of data that is usually eight bits long
Cable Modem
- A device that connects a computer to the cable television network, which in turn connects to the
Internet.
Daisy Chain
- A method used to connect devices in a series, one after the other.
DDNS
(
D
ynamic
D
omain
N
ame
S
ystem) - Allows the hosting of a website, FTP server, or e-mail server with a
fixed domain name (e.g., www.xyz.com) and a dynamic IP address.
Default Gateway
- A device that forwards Internet traffic from your local area network.
DHCP
(
D
ynamic
H
ost
C
onfiguration
P
rotocol) - A networking protocol that allows administrators to assign
temporary IP addresses to network computers by "leasing" an IP address to a user for a limited amount of time,
instead of assigning permanent IP addresses.
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59
Appendix D: Glossary
ADSL Gateway
DMZ
(
D
e
m
ilitarized
Z
one) - Removes the Router's firewall protection from one PC, allowing it to be "seen" from
the Internet.
DNS
(
D
omain
N
ame
S
erver) - The IP address of your ISP's server, which translates the names of websites into IP
addresses.
Domain
- A specific name for a network of computers.
Download
- To receive a file transmitted over a network.
DSL
(
D
igital
S
ubscriber
L
ine) - An always-on broadband connection over traditional phone lines.
Dynamic IP Address
- A temporary IP address assigned by a DHCP server.
EAP
(
E
xtensible
A
uthentication
P
rotocol) - A general authentication protocol used to control network access.
Many specific authentication methods work within this framework.
Encryption
- Encoding data transmitted in a network.
Ethernet
- IEEE standard network protocol that specifies how data is placed on and retrieved from a common
transmission medium.
Firewall
- A set of related programs located at a network gateway server that protects the resources of a
network from users from other networks.
Firmware
- The programming code that runs a networking device.
FTP
(
F
ile
T
ransfer
P
rotocol) - A protocol used to transfer files over a TCP/IP network.
Full Duplex
- The ability of a networking device to receive and transmit data simultaneously.
Gateway
- A device that interconnects networks with different, incompatible communications protocols.
Half Duplex
- Data transmission that can occur in two directions over a single line, but only one direction at a
time.
HTTP
(
H
yper
T
ext
T
ransport
P
rotocol) - The communications protocol used to connect to servers on the World
Wide Web.
Infrastructure
- A wireless network that is bridged to a wired network via an access point.
IP
(
I
nternet
P
rotocol) - A protocol used to send data over a network.
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